/* ===========================
   CSS Variables
=========================== */
:root {
    --bg-primary: #0a192f;
    --bg-secondary: #112240;
    --bg-card: #1d2d50;
    --accent: #64ffda;
    --accent-dark: #43d9b6;
    --text-primary: #ccd6f6;
    --text-secondary: #8892b0;
    --text-white: #e6f1ff;
    --border: #233554;
    --shadow: rgba(2, 12, 27, 0.7);
    --transition: all 0.3s ease;
    --font-main: 'Inter', sans-serif;
    --font-mono: 'Fira Code', monospace;
    --radius: 12px;
}

/* ===========================
   Reset & Base
=========================== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: var(--font-main);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

img {
    max-width: 100%;
    display: block;
}

a {
    text-decoration: none;
}

/* Scrollbar */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: var(--accent); border-radius: 3px; }

/* ===========================
   Utilities
=========================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section {
    padding: 100px 0;
}

.accent { color: var(--accent); }

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 2rem;
    border-radius: 8px;
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    font-family: var(--font-main);
    text-decoration: none;
}

.btn-primary {
    background: var(--accent);
    color: var(--bg-primary);
    font-weight: 600;
}

.btn-primary:hover {
    background: var(--accent-dark);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(100, 255, 218, 0.2);
}

.btn-outline {
    background: transparent;
    color: var(--accent);
    border: 1.5px solid var(--accent);
}

.btn-outline:hover {
    background: rgba(100, 255, 218, 0.1);
    transform: translateY(-2px);
}

.btn-full {
    width: 100%;
    justify-content: center;
}

/* Section Headers */
.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-tag {
    font-family: var(--font-mono);
    font-size: 0.82rem;
    color: var(--accent);
    letter-spacing: 3px;
    text-transform: uppercase;
    margin-bottom: 0.75rem;
    display: block;
}

.section-title {
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    font-weight: 700;
    color: var(--text-white);
    margin-bottom: 1rem;
    line-height: 1.2;
}

.section-subtitle {
    color: var(--text-secondary);
    font-size: 1.05rem;
    max-width: 500px;
    margin: 0 auto;
}

/* Reveal Animation */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.65s ease, transform 0.65s ease;
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===========================
   Navbar
=========================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1.25rem 0;
    transition: var(--transition);
}

.navbar.scrolled {
    background: rgba(10, 25, 47, 0.97);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    padding: 0.875rem 0;
    border-bottom: 1px solid var(--border);
    box-shadow: 0 10px 30px -10px var(--shadow);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    font-family: var(--font-mono);
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-white);
    text-decoration: none;
}

.logo-bracket,
.logo-accent { color: var(--accent); }

.nav-links {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    list-style: none;
}

.nav-link {
    color: var(--text-secondary);
    font-size: 0.875rem;
    padding: 0.5rem 0.75rem;
    border-radius: 6px;
    transition: var(--transition);
    font-family: var(--font-mono);
    text-decoration: none;
}

.nav-link:hover,
.nav-link.active {
    color: var(--accent);
}

.nav-btn {
    color: var(--accent);
    border: 1.5px solid var(--accent);
    padding: 0.45rem 1.2rem;
    border-radius: 6px;
    font-size: 0.875rem;
    font-family: var(--font-mono);
    transition: var(--transition);
    margin-left: 0.5rem;
    text-decoration: none;
}

.nav-btn:hover {
    background: rgba(100, 255, 218, 0.1);
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
    z-index: 1100;
}

.hamburger span {
    width: 24px;
    height: 2px;
    background: var(--accent);
    border-radius: 2px;
    transition: var(--transition);
    display: block;
}

.hamburger.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ===========================
   Hero
=========================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding: 120px 2rem 80px;
    max-width: 1200px;
    margin: 0 auto;
    gap: 4rem;
}

.hero-bg {
    position: fixed;
    inset: 0;
    z-index: -1;
    pointer-events: none;
}

.hero-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(100, 255, 218, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(100, 255, 218, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
}

.hero-content {
    flex: 1;
    max-width: 600px;
}

.hero-greeting {
    font-family: var(--font-mono);
    color: var(--accent);
    font-size: 1rem;
    margin-bottom: 1rem;
    display: block;
}

.hero-name {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 800;
    color: var(--text-white);
    line-height: 1.1;
    margin-bottom: 0.75rem;
    letter-spacing: -1px;
}

.hero-title {
    font-size: clamp(1.1rem, 2.5vw, 1.6rem);
    color: var(--text-secondary);
    font-weight: 400;
    margin-bottom: 1.75rem;
    min-height: 2.5rem;
    display: flex;
    align-items: center;
}

.cursor {
    color: var(--accent);
    animation: blink 1s infinite;
    font-weight: 300;
    margin-left: 2px;
}

@keyframes blink {
    0%, 49% { opacity: 1; }
    50%, 100% { opacity: 0; }
}

.hero-description {
    color: var(--text-secondary);
    font-size: 1.05rem;
    line-height: 1.8;
    margin-bottom: 2.5rem;
    max-width: 480px;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 3rem;
}

.hero-stats {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.stat { text-align: center; }

.stat-number {
    display: block;
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--accent);
    font-family: var(--font-mono);
}

.stat-label {
    font-size: 0.78rem;
    color: var(--text-secondary);
    font-family: var(--font-mono);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: var(--border);
}

/* Hero Avatar */
.hero-image {
    flex-shrink: 0;
    display: flex;
    justify-content: center;
    align-items: center;
}

.avatar-wrapper {
    position: relative;
    width: 320px;
    height: 320px;
}

.avatar {
    width: 280px;
    height: 280px;
    border-radius: 20px;
    object-fit: cover;
    position: absolute;
    top: 20px;
    left: 20px;
    z-index: 2;
    filter: grayscale(15%);
    transition: filter 0.4s ease;
}

.avatar:hover {
    filter: none;
}

.avatar-ring {
    position: absolute;
    top: 0;
    left: 0;
    width: 280px;
    height: 280px;
    border: 2px solid var(--accent);
    border-radius: 20px;
    z-index: 1;
    transition: top 0.3s ease, left 0.3s ease;
}

.avatar-wrapper:hover .avatar-ring {
    top: 10px;
    left: 10px;
}

.avatar-badge {
    position: absolute;
    bottom: 20px;
    right: 8px;
    width: 52px;
    height: 52px;
    background: var(--bg-secondary);
    border: 2px solid var(--accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
    font-size: 1.3rem;
    z-index: 3;
}

/* Scroll indicator */
.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.72rem;
    font-family: var(--font-mono);
    letter-spacing: 1px;
    text-transform: uppercase;
}

.scroll-mouse {
    width: 24px;
    height: 38px;
    border: 2px solid var(--text-secondary);
    border-radius: 12px;
    display: flex;
    justify-content: center;
    padding-top: 6px;
}

.scroll-dot {
    width: 4px;
    height: 8px;
    background: var(--accent);
    border-radius: 2px;
    animation: scroll-anim 2s ease infinite;
}

@keyframes scroll-anim {
    0%   { transform: translateY(0); opacity: 1; }
    100% { transform: translateY(12px); opacity: 0; }
}

/* ===========================
   Services
=========================== */
.services {
    background: var(--bg-secondary);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.service-card {
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 2.5rem;
    position: relative;
    transition: border-color 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
}

.service-card:hover {
    border-color: var(--accent);
    transform: translateY(-6px);
    box-shadow: 0 20px 40px rgba(100, 255, 218, 0.06);
}

.service-card.featured {
    border-color: var(--accent);
    background: linear-gradient(145deg, var(--bg-primary) 0%, rgba(100, 255, 218, 0.03) 100%);
}

.featured-badge {
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--accent);
    color: var(--bg-primary);
    font-size: 0.72rem;
    font-weight: 700;
    padding: 0.3rem 1rem;
    border-radius: 20px;
    white-space: nowrap;
    font-family: var(--font-mono);
    letter-spacing: 1px;
    text-transform: uppercase;
}

.service-icon {
    width: 60px;
    height: 60px;
    background: rgba(100, 255, 218, 0.1);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--accent);
    margin-bottom: 1.5rem;
}

.service-card h3 {
    font-size: 1.25rem;
    color: var(--text-white);
    margin-bottom: 0.75rem;
    font-weight: 600;
}

.service-card p {
    color: var(--text-secondary);
    font-size: 0.925rem;
    line-height: 1.75;
    margin-bottom: 1.5rem;
}

.service-list {
    list-style: none;
    margin-bottom: 2rem;
}

.service-list li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--text-secondary);
    font-size: 0.875rem;
    padding: 0.4rem 0;
    border-bottom: 1px solid rgba(35, 53, 84, 0.5);
}

.service-list li:last-child {
    border-bottom: none;
}

.service-list li i {
    color: var(--accent);
    font-size: 0.7rem;
}

.service-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--accent);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    transition: gap 0.2s ease;
    font-family: var(--font-mono);
}

.service-link:hover {
    gap: 0.9rem;
}

/* ===========================
   Skills
=========================== */
.skills-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 1.75rem;
}

.skill-category {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 2rem;
    transition: border-color 0.3s ease;
}

.skill-category:hover {
    border-color: rgba(100, 255, 218, 0.25);
}

.skill-category h3 {
    font-size: 0.9rem;
    color: var(--text-white);
    margin-bottom: 1.25rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-family: var(--font-mono);
    letter-spacing: 0.5px;
}

.skill-category h3 i {
    color: var(--accent);
    width: 16px;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.skill-tag {
    background: rgba(100, 255, 218, 0.07);
    border: 1px solid rgba(100, 255, 218, 0.18);
    color: var(--accent);
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-family: var(--font-mono);
    transition: var(--transition);
    cursor: default;
}

.skill-tag:hover {
    background: rgba(100, 255, 218, 0.15);
    transform: translateY(-1px);
}

/* ===========================
   Projects
=========================== */
.projects {
    background: var(--bg-secondary);
}

.filter-buttons {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 3rem;
}

.filter-btn {
    background: transparent;
    border: 1.5px solid var(--border);
    color: var(--text-secondary);
    padding: 0.45rem 1.2rem;
    border-radius: 20px;
    cursor: pointer;
    font-size: 0.82rem;
    font-family: var(--font-mono);
    transition: var(--transition);
}

.filter-btn:hover,
.filter-btn.active {
    border-color: var(--accent);
    color: var(--accent);
    background: rgba(100, 255, 218, 0.07);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.project-card {
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 2rem;
    transition: border-color 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
}

.project-card:hover {
    border-color: var(--accent);
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(100, 255, 218, 0.05);
}

.project-card.hidden {
    display: none;
}

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1.25rem;
}

.project-icon {
    font-size: 1.75rem;
    color: var(--accent);
}

.project-links {
    display: flex;
    gap: 0.75rem;
}

.project-links a {
    color: var(--text-secondary);
    font-size: 1.15rem;
    transition: var(--transition);
}

.project-links a:hover {
    color: var(--accent);
    transform: translateY(-2px);
}

.project-title {
    font-size: 1.05rem;
    color: var(--text-white);
    margin-bottom: 0.75rem;
    font-weight: 600;
}

.project-description {
    color: var(--text-secondary);
    font-size: 0.875rem;
    line-height: 1.7;
    flex: 1;
    margin-bottom: 1.5rem;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.3rem;
    align-items: center;
}

.project-tags span {
    font-size: 0.75rem;
    font-family: var(--font-mono);
    color: var(--accent);
}

.project-tags span:not(:last-child)::after {
    content: '·';
    margin-left: 0.3rem;
    color: var(--text-secondary);
}

.projects-footer {
    text-align: center;
}

/* ===========================
   About
=========================== */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1.6fr;
    gap: 5rem;
    align-items: center;
}

.about-img-wrapper {
    position: relative;
    display: inline-block;
}

.about-img-wrapper img {
    width: 100%;
    max-width: 340px;
    border-radius: 16px;
    position: relative;
    z-index: 1;
    filter: grayscale(15%);
    transition: filter 0.4s ease;
}

.about-img-wrapper img:hover {
    filter: none;
}

.about-img-border {
    position: absolute;
    top: 18px;
    left: 18px;
    right: -18px;
    bottom: -18px;
    border: 2px solid var(--accent);
    border-radius: 16px;
    z-index: 0;
    transition: top 0.3s ease, left 0.3s ease;
}

.about-img-wrapper:hover .about-img-border {
    top: 12px;
    left: 12px;
}

.about-social {
    display: flex;
    gap: 0.75rem;
    margin-top: 1.5rem;
}

.about-social a {
    width: 42px;
    height: 42px;
    border: 1.5px solid var(--border);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    font-size: 1rem;
    transition: var(--transition);
}

.about-social a:hover {
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-2px);
}

.about-text .section-tag,
.about-text .section-title {
    text-align: left;
}

.about-text .section-title {
    margin-bottom: 1.5rem;
}

.about-text p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.85;
    margin-bottom: 1rem;
}

.about-highlights {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
    margin: 1.75rem 0 2rem;
}

.highlight {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.highlight i {
    color: var(--accent);
    font-size: 0.875rem;
}

/* ===========================
   Contact
=========================== */
.contact {
    background: var(--bg-secondary);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1.6fr;
    gap: 4rem;
    align-items: start;
}

.contact-item {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
    margin-bottom: 2rem;
}

.contact-icon {
    width: 48px;
    height: 48px;
    min-width: 48px;
    background: rgba(100, 255, 218, 0.08);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
    font-size: 1.1rem;
    border: 1px solid rgba(100, 255, 218, 0.15);
}

.contact-item h4 {
    color: var(--text-white);
    font-size: 0.875rem;
    margin-bottom: 0.3rem;
    font-family: var(--font-mono);
}

.contact-item a,
.contact-item p {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.875rem;
    transition: color 0.2s ease;
    word-break: break-all;
}

.contact-item a:hover {
    color: var(--accent);
}

.contact-availability {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--text-secondary);
    font-size: 0.875rem;
    padding: 1rem 1.25rem;
    background: rgba(100, 255, 218, 0.04);
    border: 1px solid rgba(100, 255, 218, 0.12);
    border-radius: 10px;
    margin-top: 1rem;
}

.availability-dot {
    width: 8px;
    height: 8px;
    min-width: 8px;
    background: #4cff91;
    border-radius: 50%;
    animation: pulse 2s ease infinite;
}

@keyframes pulse {
    0%   { box-shadow: 0 0 0 0 rgba(76, 255, 145, 0.4); }
    70%  { box-shadow: 0 0 0 8px rgba(76, 255, 145, 0); }
    100% { box-shadow: 0 0 0 0 rgba(76, 255, 145, 0); }
}

/* Contact Form */
.contact-form {
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 2.5rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
}

.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    font-family: var(--font-mono);
    letter-spacing: 0.5px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 0.875rem 1rem;
    color: var(--text-primary);
    font-size: 0.9rem;
    font-family: var(--font-main);
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
    outline: none;
    -webkit-appearance: none;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-secondary);
    opacity: 0.5;
}

.form-group select {
    cursor: pointer;
    color: var(--text-secondary);
}

.form-group select option {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(100, 255, 218, 0.08);
}

.form-group textarea {
    resize: vertical;
    min-height: 130px;
}

/* ===========================
   Footer
=========================== */
.footer {
    background: var(--bg-primary);
    border-top: 1px solid var(--border);
    padding: 3rem 0 2rem;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2rem;
    text-align: center;
}

.footer-content p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.footer-social {
    display: flex;
    gap: 0.75rem;
}

.footer-social a {
    width: 40px;
    height: 40px;
    border: 1px solid var(--border);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    font-size: 1rem;
    transition: var(--transition);
}

.footer-social a:hover {
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-2px);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 2rem;
    border-top: 1px solid var(--border);
    flex-wrap: wrap;
    gap: 0.5rem;
}

.footer-bottom p {
    color: var(--text-secondary);
    font-size: 0.78rem;
    font-family: var(--font-mono);
}

.footer-bottom i {
    color: #ff6b6b;
}

/* ===========================
   WhatsApp Float Button
=========================== */
.whatsapp-float {
    position: fixed;
    bottom: 5.5rem;
    right: 2rem;
    width: 44px;
    height: 44px;
    background: #25d366;
    color: #fff;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    z-index: 999;
    transition: var(--transition);
    box-shadow: 0 4px 15px rgba(37, 211, 102, 0.35);
    text-decoration: none;
}

.whatsapp-float:hover {
    background: #1ebe5d;
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(37, 211, 102, 0.45);
}

.whatsapp-tooltip {
    position: absolute;
    right: 54px;
    background: #25d366;
    color: #fff;
    font-size: 0.78rem;
    font-family: var(--font-mono);
    padding: 0.3rem 0.75rem;
    border-radius: 6px;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease;
}

.whatsapp-float:hover .whatsapp-tooltip {
    opacity: 1;
}

.whatsapp-icon {
    background: rgba(37, 211, 102, 0.1) !important;
    border-color: rgba(37, 211, 102, 0.2) !important;
    color: #25d366 !important;
}

.whatsapp-social:hover {
    border-color: #25d366 !important;
    color: #25d366 !important;
}

/* ===========================
   Back to Top
=========================== */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 44px;
    height: 44px;
    background: var(--accent);
    color: var(--bg-primary);
    border: none;
    border-radius: 10px;
    cursor: pointer;
    font-size: 1rem;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 999;
    display: flex;
    align-items: center;
    justify-content: center;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-3px);
    background: var(--accent-dark);
    box-shadow: 0 10px 20px rgba(100, 255, 218, 0.25);
}

/* ===========================
   Responsive — Tablet
=========================== */
@media (max-width: 992px) {
    .hero {
        flex-direction: column-reverse;
        padding-top: 140px;
        text-align: center;
        gap: 3rem;
        min-height: auto;
        padding-bottom: 80px;
    }

    .hero-description { max-width: 100%; }
    .hero-buttons { justify-content: center; }
    .hero-stats { justify-content: center; }

    .about-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .about-image { text-align: center; }
    .about-img-wrapper { margin: 0 auto; }

    .about-text .section-tag,
    .about-text .section-title { text-align: center; }

    .about-social { justify-content: center; }
    .about-highlights { justify-items: center; }

    .contact-content {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }

    .avatar-wrapper {
        width: 240px;
        height: 240px;
    }

    .avatar {
        width: 200px;
        height: 200px;
    }

    .avatar-ring {
        width: 200px;
        height: 200px;
    }
}

/* ===========================
   Responsive — Mobile
=========================== */
@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        height: 100vh;
        width: 280px;
        background: var(--bg-secondary);
        flex-direction: column;
        align-items: flex-start;
        padding: 6rem 2rem 2rem;
        transition: right 0.35s ease;
        border-left: 1px solid var(--border);
        box-shadow: -10px 0 30px rgba(2, 12, 27, 0.5);
        gap: 0;
    }

    .nav-links.open { right: 0; }

    .nav-links li {
        width: 100%;
    }

    .nav-links li:last-child {
        margin-top: 2rem;
    }

    .nav-link {
        display: block;
        width: 100%;
        padding: 1.4rem 0;
        font-size: 1.05rem;
        border-bottom: 1px solid var(--border);
        border-radius: 0;
    }

    .nav-btn {
        display: block;
        margin-left: 0;
        width: 100%;
        text-align: center;
        padding: 1rem;
        font-size: 1rem;
    }

    .hamburger { display: flex; }

    .section { padding: 70px 0; }

    .skills-content { grid-template-columns: 1fr; }

    .form-row { grid-template-columns: 1fr; }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }

    .scroll-indicator { display: none; }
}

@media (max-width: 480px) {
    .container { padding: 0 1.25rem; }

    .projects-grid { grid-template-columns: 1fr; }
    .services-grid { grid-template-columns: 1fr; }

    .contact-form { padding: 1.75rem 1.25rem; }

    .hero-name { letter-spacing: -0.5px; }

    .about-highlights { grid-template-columns: 1fr; }
}